JPS54127897A - Manufacture of coarse calcium hypochlorite dihydrate - Google Patents
Manufacture of coarse calcium hypochlorite dihydrateInfo
- Publication number
- JPS54127897A JPS54127897A JP3535778A JP3535778A JPS54127897A JP S54127897 A JPS54127897 A JP S54127897A JP 3535778 A JP3535778 A JP 3535778A JP 3535778 A JP3535778 A JP 3535778A JP S54127897 A JPS54127897 A JP S54127897A
- Authority
- JP
- Japan
- Prior art keywords
- axle
- clo
- crystal
- coarse
- manufacture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
PURPOSE: To manufacture the coarse crystals of Ca(ClO)2.2H2O very easily separable from mother liquor by growing a columnar Ca(ClO)2.2H2O crystal whose c-axle is long and a and b axles are short, as a seed crystal, in the crystallization of calcium hypochlorite dihydrate.
CONSTITUTION: A columnar Ca(ClO)2.H2O as a seed crystal is added to a reaction liquor containing Ca(ClO)2.2H2O obtained by the chlorination of Ca(OH)2 for example and the growth of the crystal is performed. The columnar Ca(ClO)2. 2H2O used has 0.5≤b axle/a axle≤2.0, c axle/a axle≥1.5, c axle/a axle≤3.0, and the size of c axle is more than 5 microns, preferably more than 10 microns. In this method, the growth rate of crystal is so very fast that coarse Ca(ClO)2.2H2O can be obtained instantaneously. The preferred amount of the seed crystal is less than 20 wt% of the coarse crystal formed usually.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3535778A JPS54127897A (en) | 1978-03-29 | 1978-03-29 | Manufacture of coarse calcium hypochlorite dihydrate |
AU44649/79A AU522166B2 (en) | 1978-03-06 | 1979-02-27 | Dihydrate of calcium hypochlorite |
US06/016,981 US4248848A (en) | 1978-03-06 | 1979-03-02 | Dihydrate of calcium hypochlorite and method for manufacture thereof |
ZA791012A ZA791012B (en) | 1978-03-06 | 1979-03-05 | Dihydrate of calcium hypochlorite and method for manufacture thereof |
CA000322728A CA1138175A (en) | 1978-03-06 | 1979-03-05 | Dihydrate of calcium hypochlorite and method for manufacture thereof |
FR7905712A FR2424873A1 (en) | 1978-03-06 | 1979-03-06 | CALCIUM DIHYDRATE HYPOCHLORITE AND ITS PREPARATION |
DE19792908762 DE2908762A1 (en) | 1978-03-06 | 1979-03-06 | CALCIUM HYPOCHLORITE DIHYDRATE, METHOD FOR PRODUCING IT AND ITS USE |
GB7907791A GB2017666B (en) | 1978-03-06 | 1979-03-06 | Dihydrate of calcium hypochlorite and preparation thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3535778A JPS54127897A (en) | 1978-03-29 | 1978-03-29 | Manufacture of coarse calcium hypochlorite dihydrate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54127897A true JPS54127897A (en) | 1979-10-04 |
JPS57244B2 JPS57244B2 (en) | 1982-01-06 |
Family
ID=12439617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3535778A Granted JPS54127897A (en) | 1978-03-06 | 1978-03-29 | Manufacture of coarse calcium hypochlorite dihydrate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54127897A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0223726U (en) * | 1988-07-29 | 1990-02-16 | ||
JPH0583853U (en) * | 1992-04-01 | 1993-11-12 | 忠司 石黒 | Electronic desk calculator |
-
1978
- 1978-03-29 JP JP3535778A patent/JPS54127897A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57244B2 (en) | 1982-01-06 |
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